Hi:
I have been using Simple RSS Feed Reader on a Joomla 1.5 site for years with no problems at all. Now the customer wants to upgrade their site to a Joomla 3.3 but after installing the extension again in their 3.3 incarnation for J3 and entering the same RSS feed URLs that worked fine on the previous version, no one single feed appear. I tried using them one at a time just in case one of them messed the whole thing but no one worked.
Any suggestion?

Hi. Which version of Simple RSS Feed Reader are you using?

The last one, Simple RSS Feed Reader 3.3 for Joomla 3.x on a Joomla 3.3.6

Try to use the development version from github.com/joomlaworks/simple-rss-feed-reader/archive/master.zip and let me know if solves your issue.

Nope!
One strange thing is that actually I created a new module with the default configuration (and thus, with the three sample RSS feeds from feedburner) and they worked fine, but any additional feed that I add, either above or below those three, does not show any post.
Should they be only from feedburner?

This indicates that probably something is wrong with the feeds. What are the feed URLs you are using?

All of them are wrong? I use the same URLs that those used in version for Joomla 1.5.
For exemple:
www.molles.cat/feeds/posts/default
sergisabate.cat/blog/

The second one is not a feed url. It is the URL of a site. The first one should work, i just tested.

Is the first one working for you?
No one works for me no matter if they point to a feed source or not.
For exemple this one alone is not working either: el3devuit.penedescultura.cat/agenda/agenda/RSS

Actually, on the version for Joomla 1.5 all worked pretty well.

Any suggestion? Some interference with other modules?

Thanks.

Let's verify that you have taken the correct steps:

1 . Download and install the development version from github.com/joomlaworks/simple-rss-feed-reader/archive/master.zip .
2. Edit the module settings. Start with entering only one URL. Use this www.molles.cat/feeds/posts/default which i tested and worked fine for me.

If this is not working maybe there is a server issue.